In-tree version of FLTK needs Fl_PNG_Image in order to use the new icon code in the viewer
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4920 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/fltk/src/CMakeLists.txt b/common/fltk/src/CMakeLists.txt
index 4cb64e5..9a6d255 100644
--- a/common/fltk/src/CMakeLists.txt
+++ b/common/fltk/src/CMakeLists.txt
@@ -44,6 +44,7 @@
Fl_Pack.cxx
Fl_Paged_Device.cxx
Fl_Pixmap.cxx
+ Fl_PNG_Image.cxx
Fl_Positioner.cxx
Fl_Printer.cxx
Fl_Preferences.cxx